Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate FujiFilm S2500HD and Olympus SP-810 UZ side-by-side from the front, back and top in their relative dimensions. FujiFilm S2500HD has external dimensions of 110 x 73 x 81 mm (4.33 x 2.89 x 3.19″) and weighs 337 g (0.74 lb / 11.89 oz) (including batteries). Olympus SP-810 UZ has external dimensions of 106 x 76 x 74 mm (4.17 x 2.99 x 2.91″) and weighs 413 g (0.91 lb / 14.57 oz) (including batteries).
Below you can see the front view size comparison of FujiFilm S2500HD and Olympus SP-810 UZ. Olympus SP-810 UZ is 4mm narrower and 7mm thinner than FujiFilm S2500HD but it is also 3mm taller.
Here is the back view size comparison of FujiFilm S2500HD and Olympus SP-810 UZ.
Now lets look at the top view comparison of FujiFilm S2500HD and Olympus SP-810 UZ.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
FujiFilm S2500HD is significantly lighter (76g ) than the Olympus SP-810 UZ which may become a big advantage especially on long walking trips.
Unfortunately neither FujiFilm FinePix S2500HD (FinePix S2600HD) nor Olympus SP-810 UZ provides any type of weather sealing in their body, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
FujiFilm S2500HD and Olympus SP-810 UZ's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.